Amount of expense for research and development. Includes, but is not limited to, cost for computer software product to be sold, leased, or otherwise marketed and writeoff of research and development assets acquired in transaction other than business combination or joint venture formation or both. Excludes write-down of intangible asset acquired in business combination or from joint venture formation or both, used in research and development activity.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 48
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-48

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 985
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 730
-SubTopic 10
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-Paragraph 1
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Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 912
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org/1943274/2147479532/912-730-25-1

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Data Type:	xbrli:monetaryItemType
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Related Party Transactions - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Related Party Transaction [Line Items]
Prepaid research and development costs	$ 6,088		$ 6,088		$ 24,297
Research and development expenses	60,630	$ 41,601	155,015	$ 103,855
Amgen Research and Collaboration Agreement
Related Party Transaction [Line Items]
Related party transaction obligation with related party					3,100
Prepaid research and development costs					$ 6,300
Research and development expenses	$ 12,500	$ 8,100	$ 12,500	$ 24,400